Counting Protons Electrons Neutrons Atoms and Ions

What is the atomic number of this nucleus?

• 1
• 3
• 4
• 7

What is the atomic number of this atom?

• 4
• 5
• 9
• none of the above

Tags

NGSS.MS-PS1-1

What is the atomic number of this atom?

• 2
• 4
• 6
• none of the above

Tags

NGSS.HS-PS1-1

What is the atomic number of this atom?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

Which particle has a positive charge?

• electron
• orbital
• proton
• neutron

Choose the particle that has no charge.

• nucleus
• neutron
• proton
• electron

An electron has a _____ charge.

• negative
• positive
• neutral

Which subatomic particle has a negative charge in the atom?

• proton
• neutron
• electron
• quark

Tags

NGSS.HS-PS1-1

The atomic number of Hydrogen is

• 1
• 2
• 3
• 4

The atomic mass of hydrogen is

• 1
• 2
• 3
• 4